Need some help with MIPS Code

I need some help with a project for one of my classes, I cant seem to find the problem in my code thats keeping it from working. Here is what the project is, its implementing floating point addition using only integers.

Your goal for this project is to implement software emulation of floating point?addition for 32-bit (single-precision) floating point numbers.??Input/Output?Your program will prompt the user for two floating point numbers. It will then compute and display the sum. Here